Water. You come back.
— Donna to Ryn[src]

Donna was a main character on Freeform's series, Siren. She was portrayed by Sibongile Mlambo.

Donna was a mystifying, deceptively powerful mermaid and Siren. When she and her sister, Ryn, were out swimming, Donna was captured by fishermen, separating her from Ryn. When captured, she attacked one of the fishermen on board, before being taken by the military on a helicopter to their military base. The scientists began to experiment on her. While in her tank, she studied the doctors and scientists. One day, she attacked and killed many of the employees at the military base, allowing her to make her escape. She has since reunited with Ryn.

She took the name of Donna when she escaped from the government facility with Chris where they were being held, and killed a nurse named Donna for her clothes and ID badge.

Official Description Edit

A mystifying and deceptively powerful mermaid.[1]

Early Life Edit

Donna and Ryn's mother died when they were young and she raised Ryn.

Physical Appearance Edit


Donna had smooth dark skin in her human form. She also had thick, poofed and curly black hair accompanied with beautiful blue eyes. Like her sister, Donna was an attractive woman in her humanoid form (this is evident when most of the U.S. military and Aldon Decker were drawn to her).


Donna, in her mermaid form, had the upper-body of a human and the lower-half of a spiky, long fishtail. Along with that, she had small sharpened teeth, large glassy eyes and exposed ribs. She also still maintained her thick and curly black hair.

Personality Edit

Donna was naturally aggressive and violent when it comes to prey, either fish or human. Her killer instincts and hatred towards humans have only grown due to being experimented on by the military's scientists.

However, after seeing how Ryn acclimated with human culture, Donna began to show a softer side towards Ryn and her human friends, a more human side. Donna became less aggressive and more caring before her death.

Throughout the Series Edit

Season 1 Edit


Donna being held in a fish tank

Donna and her sister Ryn were swimming in the ocean, searching for food, when Donna was captured by a group of fishermen, Xander McClure, Sean McClure and Chris Mueller and Calvin. However, her entrapment was unintentional and they had no idea that she was a mermaid upon her capture. When Chris came at her with an axe, she attacked, severely wounding Chris before running for cover. She remained hidden until a Navy SEAL team arrived and hauled her away in a steel chamber after shooting her with tranquilizing darts.

Donna was then taken to a military based and place in a rather large fish tank.[2]

Relationships Edit


Ryn is Donna’s mermaid sister and her new leader in their mermaid colony. They share a close relationship, especially after the death of their mother years ago; they also hunt for fish together in the ocean. However, during one of their food hunts, they are caught in Xander’s father’s ship net and beached on their ship. Ryn and Donna try to escape while injuring Chris Mueller in the process. In the end, Donna is captured by the U.S. military and Ryn escapes. Ryn later beaches herself and turns into a human in an attempt to find Donna. After escaping the U.S. military’s clutches, Donna shares a heartfelt reunion with Ryn and they return to the ocean together.

A month after their reunion, Donna and Ryn are forced to find help on land due to humans over fishing in their waters. Donna goes against Ryn’s friends (Maddie and Ben) after she believes they are the ones responsible for over-fishing in their ocean, which strains her relationship with Ryn. Much to Donna’s dismay, Ryn stays on land to rectify the fishing situation while Donna returns to their mermaid colony in the ocean. After Donna realized her colony wants to kill Ryn for staying on land too long, Donna temporarily abandons the colony and allies with Ryn and her friends to stop their colony. This restores their close relationship. However, Donna risks losing her life after Xander unintentionally shoots her. Ryn anxiously waits for Donna to recover, but Donna’s chances are slim according to Ben, Maddie and Helen. However, Donna and Ryn are staying side-by-side until they can find a solution for Donna’s recovery. However, when there is no solution, Donna tragically passes away in Ryn’s arms. Her lifeless human form is taken to a secret and sacred resting place for fellow mermaids who were ruthlessly slaughtered while in human form; Ben and Helen's own ancestors.

Aldon DeckerEdit

Aldon is a scientist who experimented on and tortured Donna in a military facility. Donna despises Aldon and even attempted to kill him (with Ryn) as revenge. However, Donna decides to abandon her revenge scheme and return to the ocean due to other issues. Whether or not Donna is aware, Aldon is obsessed with her siren song despite their hostile relationship. When Aldon begs Donna on her deathbed to sing to him one more time, she is barely able to respond and Ryn intervenes by rejecting his request. When Donna dies, Aldon felt he had no other choice but to kill himself.

Helen HawkinsEdit

Donna found shelter with Helen after she argued with and left Ryn to stay with her human friends. Donna was surprised to learn that Helen was also a mermaid, which strengthened their alliance. Donna only had minimal interaction with Helen, until she returned to land and Helen’s store a second time, after Sean McClure’s death. Helen is angry at Donna because she believes Donna was in on Sean’s murder. When Donna’s fellow mermaid colony members attacked Helen after she angrily asked them of their involvement in Sean’s death, Donna saved Helen by stopping Levi and Katrina from killing Helen and the two ran out of Helen’s store. After this and the war between Donna and her colony (which led to Donna being shot), Helen repaid Donna by allowing her to stay in her home to try and recover from a deadly shotgun wound. It can be assumed their relationship is friendly again, especially when Helen allows Ryn to burry Donna’s deceased body where her ancestors were buried.

Ben PownallEdit

Donna got off on the wrong foot with Ben (and Maddie) when she met them through Ryn. Donna believed Ben and Maddie were the humans responsible for overfishing in the ocean and rebelled against them. Donna only worsened her relationship with Ben when she allied with Levi and Katrina against Ben and his friends while on Xander’s ship. Donna was a part of the alliance that killed Sean McClure (Ben’s best friend’s father), but Donna rectified this by siding with Ryn against Levi and Katrina when they all surfaced from the ocean.

Donna recognizes that Ryn shared a connection with Ben, which worried Donna because of her mermaid colony’s strict rules against a mermaid/merman staying on land with a human lover. However, Donna and Ben still allied together to stop Levi and Katrina from killing Ryn. Their alliance only becomes stronger when Ben assists Ryn in taking Donna to safety after Xander unintentionally shoots her. Donna later passes away in the company of Ben, which saddens Ben.

Admiral Harrison & the U.S. Military

Although Donna doesn’t interact with Admiral Harrison that much, he still became her enemy along with the members of the U.S military. Harrison made Aldon Decker treat Donna as a test subject and no more, which angered Donna up until her death and made her assume all humans were bad. The admiral also made Decker and the rest of his scientists torture and experiment on Donna being she was a mermaid. However, the admiral and Donna don’t interact again once she escaped the military facility she was being held in. Donna is grateful to have escaped the facility and to Ben away from humans, such as the admiral.

Quotes Edit

You like human.
— Donna to Ryn[src]
Your home not here. In the water.
— Donna to Ryn in "Showdown"
No human help me. They...hurt! Pain! And you. Sister, choose them.
— Donna explains to Ryn about the intense agony and suffering she had to endure while being experimented on.

You chose human over me.
— Donna to Ryn[src]

We come take Ryn back to her home.
— Donna to Helen[src]

Helen should help me.
— Donna to Helen, as she leaves her shop in "Street Fight"

You kill her, you kill me.
— Donna to Katrina and Levi who threaten Ryn

Appearances Edit

Season 1
Episode Appearance Status
Pilot Appears
The Lure Appears
Interview With a Mermaid Appears
On the Road Appears
Curse of the Starving Glass Appears
Showdown Appears
Dead in the Water Appears
Being Human Appears
Street Fight Appears
Aftermath Appears

Trivia Edit

  • She is the first to learn of Helen Hawkins' true identity as a fellow mermaid.
  • She is the first mermaid to die in the show, as well as the first dark-skinned mermaid in any merfolk-related show.
  • She is the first mermaid to be killed after the first massacre by Charles Pownall and his shipmates.

Gallery Edit

Promotional ImagesEdit


References Edit

  1. Deadline—"‘Siren’: Sibongile Mlambo Cast As Series Regular In Freeform Drama" (July 26, 2017)
  2. Wald, Eric (writer) & Stewart, Scott (director) (January 26, 2017). Pilot. Siren. Season 1. Episode 1. Freeform.